Men's Thien Tru Lab-Grown Diamond Ring, 14K White Gold

A wide men's 14K white gold ring with a round lab-grown diamond held by four square prongs at the center. On either side are columns of square diamonds set flush in metal channels, while the top and bottom edges carry two rows of square stones lying crosswise.

All the accent stones are square, not a single round one — that's what gives this ring its geometric, ruler-straight look.

Columns of square stones set flush in channels

The setting here is quite different from ordinary prongs: the square stones drop into a metal channel, its two walls gripping two sides of each stone, with the face of the stone level with the metal. No prong beads rise between the stones.

This has two real advantages: the flat face snags less and presses less against the neighboring finger, and with no small prongs there are no prongs to come loose. In exchange, the channels must be cut to the millimeter — square stones allow no margin of error, and one stone short makes the whole column crooked and visibly so.

The columns of stones run along the band, alternating with plain metal bars. This solid–open rhythm keeps the wide band from becoming one even field of light. The top and bottom edges add two rows of square stones lying crosswise, framing everything, and these rows are what keep the ring shining from the side.

Three things to check when you hold it

14K white gold and lab-grown diamonds

14K gold is harder than higher-karat gold — with flush channel setting, the hardness of the metal is what holds the stones, so this isn't an optional choice but a requirement. White gold is rhodium-plated for a bright white color; the plating wears gradually with use, and when it starts to tint, a trip to the store for re-plating restores it.

Both the center stone and the accent stones are lab-grown diamonds — real diamonds in structure, differing only in being grown in a lab rather than mined, and in price. Evenly sized square stones are naturally harder to source and more expensive than round stones of the same size, so the price difference matters even more for an all-square design.

Care and sizing

The flat face collects less dirt than prong-set designs, but the gaps between stones and the channel edges still need brushing. Soaking in warm water with a little dish soap, brushing gently along the channels with a soft brush and drying is enough each week. Take the ring off for weightlifting, gardening or using cleaning chemicals.

On sizing: a wide band fits tighter than a slim band of the same number, so you usually need about half a size to a full size larger. Measure in the afternoon when your hand is most expanded, and use a proper wide-band sizer. Channel-set designs can hardly be resized after completion — get the size right from the start.

Men's ring advice at Thảo Linh Jewelry

You can try it on in person at the Thảo Linh Jewelry showroom, 120 Pham Thi Tanh, Chanh Hung Ward, Ho Chi Minh City, or call 0945 006 001 for sizing advice and to see the design in person.